
<h1><span class="yiyi-st" id="yiyi-12">numpy.zeros</span></h1>
        <blockquote>
        <p>原文：<a href="https://docs.scipy.org/doc/numpy/reference/generated/numpy.zeros.html">https://docs.scipy.org/doc/numpy/reference/generated/numpy.zeros.html</a></p>
        <p>译者：<a href="https://github.com/wizardforcel">飞龙</a> <a href="http://usyiyi.cn/">UsyiyiCN</a></p>
        <p>校对：（虚位以待）</p>
        </blockquote>
    
<dl class="function">
<dt id="numpy.zeros"><span class="yiyi-st" id="yiyi-13"> <code class="descclassname">numpy.</code><code class="descname">zeros</code><span class="sig-paren">(</span><em>shape</em>, <em>dtype=float</em>, <em>order=&apos;C&apos;</em><span class="sig-paren">)</span></span></dt>
<dd><p><span class="yiyi-st" id="yiyi-14">返回给定形状和类型的新数组，用零填充。</span></p>
<table class="docutils field-list" frame="void" rules="none">
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<tr class="field-odd field"><th class="field-name"><span class="yiyi-st" id="yiyi-15">参数：</span></th><td class="field-body"><p class="first"><span class="yiyi-st" id="yiyi-16"><strong>shape</strong>：int或ints序列</span></p>
<blockquote>
<div><p><span class="yiyi-st" id="yiyi-17">新数组的形状，例如<code class="docutils literal"><span class="pre">（2，</span> <span class="pre">3）</span></code>或<code class="docutils literal"><span class="pre">2</span></code>。</span></p>
</div></blockquote>
<p><span class="yiyi-st" id="yiyi-18"><strong>dtype</strong>：数据类型，可选</span></p>
<blockquote>
<div><p><span class="yiyi-st" id="yiyi-19">数组的所需数据类型，例如<code class="xref py py-obj docutils literal"><span class="pre">numpy.int8</span></code>。</span><span class="yiyi-st" id="yiyi-20">默认值为<code class="xref py py-obj docutils literal"><span class="pre">numpy.float64</span></code>。</span></p>
</div></blockquote>
<p><span class="yiyi-st" id="yiyi-21"><strong>order</strong>：{&apos;C&apos;，&apos;F&apos;}，可选</span></p>
<blockquote>
<div><p><span class="yiyi-st" id="yiyi-22">是否在存储器中以C或Fortran连续（按行或列方式）存储多维数据。</span></p>
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</tr>
<tr class="field-even field"><th class="field-name"><span class="yiyi-st" id="yiyi-23">返回：</span></th><td class="field-body"><p class="first"><span class="yiyi-st" id="yiyi-24"><strong>out</strong>：ndarray</span></p>
<blockquote class="last">
<div><p><span class="yiyi-st" id="yiyi-25">具有给定形状，dtype和阶数的零数组。</span></p>
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<div class="admonition seealso">
<p class="first admonition-title"><span class="yiyi-st" id="yiyi-26">也可以看看</span></p>
<dl class="last docutils">
<dt><span class="yiyi-st" id="yiyi-27"><a class="reference internal" href="numpy.zeros_like.html#numpy.zeros_like" title="numpy.zeros_like"><code class="xref py py-obj docutils literal"><span class="pre">zeros_like</span></code></a></span></dt>
<dd><span class="yiyi-st" id="yiyi-28">返回具有输入的形状和类型的零数组。</span></dd>
<dt><span class="yiyi-st" id="yiyi-29"><a class="reference internal" href="numpy.ones_like.html#numpy.ones_like" title="numpy.ones_like"><code class="xref py py-obj docutils literal"><span class="pre">ones_like</span></code></a></span></dt>
<dd><span class="yiyi-st" id="yiyi-30">返回具有输入的形状和类型的数组。</span></dd>
<dt><span class="yiyi-st" id="yiyi-31"><a class="reference internal" href="numpy.empty_like.html#numpy.empty_like" title="numpy.empty_like"><code class="xref py py-obj docutils literal"><span class="pre">empty_like</span></code></a></span></dt>
<dd><span class="yiyi-st" id="yiyi-32">返回一个具有输入形状和类型的空数组。</span></dd>
<dt><span class="yiyi-st" id="yiyi-33"><a class="reference internal" href="numpy.ones.html#numpy.ones" title="numpy.ones"><code class="xref py py-obj docutils literal"><span class="pre">ones</span></code></a></span></dt>
<dd><span class="yiyi-st" id="yiyi-34">将新的数组设置值返回为1。</span></dd>
<dt><span class="yiyi-st" id="yiyi-35"><a class="reference internal" href="numpy.empty.html#numpy.empty" title="numpy.empty"><code class="xref py py-obj docutils literal"><span class="pre">empty</span></code></a></span></dt>
<dd><span class="yiyi-st" id="yiyi-36">返回一个新的未初始化数组。</span></dd>
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<p class="rubric"><span class="yiyi-st" id="yiyi-37">例子</span></p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">np</span><span class="o">.</span><span class="n">zeros</span><span class="p">(</span><span class="mi">5</span><span class="p">)</span>
<span class="go">array([ 0.,  0.,  0.,  0.,  0.])</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">np</span><span class="o">.</span><span class="n">zeros</span><span class="p">((</span><span class="mi">5</span><span class="p">,),</span> <span class="n">dtype</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">int</span><span class="p">)</span>
<span class="go">array([0, 0, 0, 0, 0])</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">np</span><span class="o">.</span><span class="n">zeros</span><span class="p">((</span><span class="mi">2</span><span class="p">,</span> <span class="mi">1</span><span class="p">))</span>
<span class="go">array([[ 0.],</span>
<span class="go">       [ 0.]])</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">s</span> <span class="o">=</span> <span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="mi">2</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">np</span><span class="o">.</span><span class="n">zeros</span><span class="p">(</span><span class="n">s</span><span class="p">)</span>
<span class="go">array([[ 0.,  0.],</span>
<span class="go">       [ 0.,  0.]])</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">np</span><span class="o">.</span><span class="n">zeros</span><span class="p">((</span><span class="mi">2</span><span class="p">,),</span> <span class="n">dtype</span><span class="o">=</span><span class="p">[(</span><span class="s1">&apos;x&apos;</span><span class="p">,</span> <span class="s1">&apos;i4&apos;</span><span class="p">),</span> <span class="p">(</span><span class="s1">&apos;y&apos;</span><span class="p">,</span> <span class="s1">&apos;i4&apos;</span><span class="p">)])</span> <span class="c1"># custom dtype</span>
<span class="go">array([(0, 0), (0, 0)],</span>
<span class="go">      dtype=[(&apos;x&apos;, &apos;&lt;i4&apos;), (&apos;y&apos;, &apos;&lt;i4&apos;)])</span>
</pre></div>
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